Is it true that Fast Charge only enable under 50%? If it is i don't know why mine is always on
It depends on the chipset and that specific phone maker. Qualcomm's white papers, for example, list its threshold as 82%, then slowly trickling back to normal charging.
My phone is S6 Edge. I am asking because mine is always on.
loctuantran said:
My phone is S6 Edge. I am asking because mine is always on.
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I doubt it's always ON, on my S6 edge it gets to a certain percentage I think round about 80% then it trickle charge, don't be fooled by the notification that says "Fast Charging", it will continue saying that as long as you still using the fast charger, use an app like Ampere and you'll notice clearly what I'm talking about, when your battery percentage is still lower, Ampere records about 2700mA, that's when it's still fast charging, when it's about 80% battery percentage Ampere shows about 600mA that's when it's trickle charging, also if you using your device while charging it will show 1000mA
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I am using the latest LineagOS. I thought Le Max 2 has QC3.0 support which should let it run at 12v charge voltage, but it does not.
The best it does is 9V and 1.6A (measured using usb meter) totaling to 14.4W. I tried the phone at room temperature, also cooled it down in fridge and tried again. Results are same. The battery was 1% - 3% at start.
Is this normal? I calculated and 14.4W if batteryt was charged to 4.35V makes roughly 3300mA which sounds rather low. I expected phone to go around 4100mA at least while charging.
More importantly, it never switches to 12V charging voltage. Is that normal?
my phone is going up to 4100mA while charging. On some roms you have to enable quick charge in your phones settings.
@LivingLing did you test with a program like Ampere or using a USB meter device? Because your ROM may be giving you incorrect values and it can't be trusted.
There is no quick charge option in LineageOS but I can see that phone is using quick charge because charger increase voltage to 9V. I am trying to understand why it wouldn't go to 12V
yurtesen said:
@LivingLing did you test with a program like Ampere or using a USB meter device? Because your ROM may be giving you incorrect values and it can't be trusted.
There is no quick charge option in LineageOS but I can see that phone is using quick charge because charger increase voltage to 9V. I am trying to understand why it wouldn't go to 12V
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No i didnt used anything like that, just mentioned the values given by the Rom. But my phone charges Form 10% to 100% in like 15 minutes. So thats actually pretty fast in my opinion.
That sounds impossible, make a screenshot from the charging graph please. That would be something about 10A charging current...
I get about 4,5A when I activate QC on the EUI
@LivingLing Your phone must be broken if you can charge 0 to 100% in 15 minutes. You can't really charge a lithium battery very fast after about 80% and thats why quick charge implementations never talk about 0 to 100% charge time.
With lithium battery, most implementations set the input voltage to about 4.35V and battery charges as fast as it can pull power. This slows down when battery is near full.
I recommend you to get a USB meter, they cost few dollars anyway and quite cool devices.
I personally don't believe anymore on those battery health apps or even that samsung method when you go check that folder inside system that "maybe" shows real battery health. I mean sometimes people can own a device for only a week or even a month and it shows 85 or 90% battery health which is a HUGE loss in a very short time, in my opinion in 1 year of usage even with fast charging..etc max loss would be 10-20% depends on how much you use it, now i have an S7 only 6 months old,rarely use fast charging and treat it very well and it says 84-85%, which is wrong in my opinion...What do you think guys ?
Yes you are right. I have a new device and I got these battery stats with phone info app:
discharge cycles: 1
battery health: 95,05%
This is ridiculous
dr.guru said:
Yes you are right. I have a new device and I got these battery stats with phone info app:
discharge cycles: 1
battery health: 95,05%
This is ridiculous
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Exactly, my case for example on accubattery it shows 80%, while in Samsung phone if it shows 85% lol
Is there a way on the S9+ to turn of fast charging? Does fast charging really makes the capacity loss bigger?
arnes_king said:
Is there a way on the S9+ to turn of fast charging? Does fast charging really makes the capacity loss bigger?
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Yes there is hope to device maintenance > battery > click the three dots button on top right and go advanced settings and there you can disable fast charging
I trust more on files than on apps, apps are 100% wrong.
Check charge_counter when at 100% to see the ammount of mA u have and fg_asoc to check battery capacity, this files can be found in sys/class/power_supply/battery, no root needed to check them. Charge_counter "tells" you mA of the battery at current time in real time, so, just charge until 100% and let it charge more, 100% isn't 100% charged, when it reaches 100% battery it still charges about 100mA.. 102% battery capacity, 3570mA on my S9+.
Phone Info shows 97,15% with 18 discharges, completely garbage and wrong.
LiNe1771 said:
I trust more on files than on apps, apps are 100% wrong.
Check charge_counter when at 100% to see the ammount of mA u have and fg_asoc to check battery capacity, this files can be found in sys/class/power_supply/battery, no root needed to check them. Charge_counter "tells" you mA of the battery at current time in real time, so, just charge until 100% and let it charge more, 100% isn't 100% charged, when it reaches 100% battery it still charges about 100mA.. 102% battery capacity, 3570mA on my S9+.
Phone Info shows 97,15% with 18 discharges, completely garbage and wrong.
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Yes i know that method i said it in OP,but even that won't be 100% accurate in my opinion
arnes_king said:
Is there a way on the S9+ to turn of fast charging? Does fast charging really makes the capacity loss bigger?
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Don't worry about it. Also don't bother with battery apps. I am getting excellent battery on Exynos S9+ even though AccuBattery states that my phone battery health is only 93% (3256mAh); I find it difficult to believe.
Starting with S8 Samsung claimed that the phone will retain 95% battery after 1yr of use.
Samsung even upped that claim to 2yr of use with Note8.
Phones charge at a much lower temperature since S8 (compared to previous Gen and other phones). If you have ever noticed; then the charging switches to non-fast regular one as soon as screen is turned on. This is the behaviour ever since S8; I think it is designed that way to avoid overheating if one uses their phone while charging. The phone lockscreen will still say that the phone is fast charging, but actual current and voltage readings will show that the phone is not fast charging anymore once screen comes on. I have tested this with a car charger that changes colour depending upon charge type (green for fast charge and blue for regular).
madnav said:
Don't worry about it. Also don't bother with battery apps. I am getting excellent battery on Exynos S9+ even though AccuBattery states that my phone battery health is only 93% (3256mAh); I find it difficult to believe.
Starting with S8 Samsung claimed that the phone will retain 95% battery after 1yr of use.
Samsung even upped that claim to 2yr of use with Note8.
Phones charge at a much lower temperature since S8 (compared to previous Gen and other phones). If you have ever noticed; then the charging switches to non-fast regular one as soon as screen is turned on. This is the behaviour ever since S8; I think it is designed that way to avoid overheating if one uses their phone while charging. The phone lockscreen will still say that the phone is fast charging, but actual current and voltage readings will show that the phone is not fast charging anymore once screen comes on. I have tested this with a car charger that changes colour depending upon charge type (green for fast charge and blue for regular).
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This behaviour exist on the S7 too i guess
madnav said:
Don't worry about it. Also don't bother with battery apps. I am getting excellent battery on Exynos S9+ even though AccuBattery states that my phone battery health is only 93% (3256mAh); I find it difficult to believe.
Starting with S8 Samsung claimed that the phone will retain 95% battery after 1yr of use.
Samsung even upped that claim to 2yr of use with Note8.
Phones charge at a much lower temperature since S8 (compared to previous Gen and other phones). If you have ever noticed; then the charging switches to non-fast regular one as soon as screen is turned on. This is the behaviour ever since S8; I think it is designed that way to avoid overheating if one uses their phone while charging. The phone lockscreen will still say that the phone is fast charging, but actual current and voltage readings will show that the phone is not fast charging anymore once screen comes on. I have tested this with a car charger that changes colour depending upon charge type (green for fast charge and blue for regular).
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thats a least so since the S6.
Also note that when Screen is on it only charges the battery with a max current of about 1020mA
Is that true that charging the phone with cycle "100%-15%" is bad for battery life? I want to keep my phone for years, but I don't want that the batterie will die sooner. Even so is it impossible to change it
Inviato dal mio SM-G965F utilizzando Tapatalk
turtuv said:
Is that true that charging the phone with cycle "100%-15%" is bad for battery life? I want to keep my phone for years, but I don't want that the batterie will die sooner. Even so is it impossible to change it
Inviato dal mio SM-G965F utilizzando Tapatalk
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Samsung claimed 95% battery life retention with 1yr usage starting from S8.
I assume the batteries on S8 onwarda are actually higher capacity than what is used (in order to keep battery charge cycles low). I assume that because Samsung is claiming so without telling users to not charge to 100%. Retaining 95% battery over a year despite of charging 100% seems a bit difficult to me otherwise.
Sent from my SM-G965F using Tapatalk
My previous phone was saying on the lock screen "Fast charging" and I was able to see two lightnings on battery icon in a same time so I knew immediately when fast charging was engaged.
How is Nokia 7.1 ?
It will display rapid charging.
Well, I don't see rapid charging anywhere using original charger
luckyluc81 said:
Well, I don't see rapid charging anywhere using original charger
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My bad that's weird mines displays rapid changing under the fingerprint symbol on Lockscreen
Ok I got it as well, it doesn't say rapid charging all the time though. Thanks for the hint
is the original charger fast charger?
When you plug the charger it takes some time for the phone to detects if it is fast charging. Then it displays charging rapidly. And after a certain percent of battery charged it quit the rapid charging i thing (50-60% i think but i could be wrong). As of my knowledge of how lithium battery is charged this is usually done to prevent overcharging and popping the battery as a popcorn. I am not sure if this is exactly the case just an assumption based on my very few times observing the charging (im new with the phone). Never payed much of attention on that on my previous quick/fast/rapid or whatever charging phones.
Sent from my LG-H870 using XDA Labs
Nokia 7.1 does not fast charge when screen is on.
luckyluc81 said:
My previous phone was saying on the lock screen "Fast charging" and I was able to see two lightnings on battery icon in a same time so I knew immediately when fast charging was engaged.
How is Nokia 7.1 ?
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Use Ampere.
basically I have the s23 ultra, the 313 ace charger 45w . and a 5A /100w cable ..
past 3 days it says "super fast charging 2.0" and displays the blue circle. for the duration of the charge..
now 5 hours ago, I plug in and see the blue circle, and the super fast charging 2.0 but after about 15 seconds it displays the green circle and says " fast charging"
I unplug and replug .. same thing happens..
so my question to the L337 developers on the site, can you force the phone to quick charge 2.0 with an app? or some setting hidden in some secret dev window?
I know the hardware can handle the charge and I've changed zero settings in the phone so it's definitely a deep seeded software issue. I've cleared the cache , double checked basic toggles. I'm lost.
There may be nothing wrong.
Phone throttles down charging based on battery charge level. When battery gets above certain level it will no longer charge at full speed.
OnnoJ said:
There may be nothing wrong.
Phone throttles down charging based on battery charge level. When battery gets above certain level it will no longer charge at full speed.
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I started the charge at 20% .. so you're saying the phone decided to limit the charge to 15w because it was above what exactly? 21% ?
back to my original question.. phone starts at super fast charging 2.0 , and then 15 seconds later it throttles to "fast charging" .. is there a way to force the super fast charging 2.0 protocol because the software is whats limiting it.
Just get the original Samsung charger brick.
mittymak said:
I started the charge at 20% .. so you're saying the phone decided to limit the charge to 15w because it was above what exactly? 21% ?
back to my original question.. phone starts at super fast charging 2.0 , and then 15 seconds later it throttles to "fast charging" .. is there a way to force the super fast charging 2.0 protocol because the software is whats limiting it.
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You didn't report the charging levels, hence my 'may...'.
Anyway, 20% is too low.
I do not know the exact levels (did not conduct a thorough test), but at least at 70% with my samsung 65W charger (Galaxy Book2 360pro) and 100W cable there is no more Super Fast Charging 2.0. I have S918B/DS, CSC EUX, SFC is there at least below 50%, no software limitation there...
What is limiting your charging I can't tell (Charger, Cable, Phone SW/HW...?)
Hi,
I’m sorry if this question was asked before, I'm planning to buy samsung galaxy s21 and one feature that I'm fond of is to use it as a desktop replacement. The phone would be constantly plugged in for dex use and also would be used as a regular phone. I'm concerned however, will it affect battery life when the phone is constantly plugged in. If the battery is full, shouldn't the phone use the power from the outlet directly and not use the battery at all? It seems logical that battery use should be turned off while using it directly from charger, but reading from the web I got the impression that phones usually use battery even when using a charger, that battery will always be used. Is perhaps that dependent from the price of the phone, that the cheaper phones still use the battery and premium phones can intelligently turn off the battery while plugged in and use the power outlet directly?
From what I've observed using a meter that reports milli amps of the battery, charging shows a positive rate. Discharge shows a negative rate.
But when plugged in, even fully charged, it shows 0 most of the time.
This means it's using the power supply for the whole load.
Sometimes a blip to 300ma but that's probably just a self test of the battery to verify capacity under load.
robnitro said:
From what I've observed using a meter that reports milli amps of the battery, charging shows a positive rate. Discharge shows a negative rate.
But when plugged in, even fully charged, it shows 0 most of the time.
This means it's using the power supply for the whole load.
Sometimes a blip to 300ma but that's probably just a self test of the battery to verify capacity under load.
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thank you for your insights into this. I don't have experience with premium phones, I only know that on cheap ones the battery suffers greatly with being plugged in. I'm looking forward to try out s21
daniel2233 said:
thank you for your insights into this. I don't have experience with premium phones, I only know that on cheap ones the battery suffers greatly with being plugged in. I'm looking forward to try out s21
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S21 also allows you to limit battery charge to 85% for battery life.
I can confirm when using that stop, the current flow is essentially 0 when plugged in or on wireless charging according to the app I use, cool tool overlay.
If you want to check, try accubattery or cool tool.
Cool Tool - system stats - Apps on Google Play
Coolest tool ever. Because it always on top
play.google.com